Braiding-machine.



PATENTBD JULY 21, .1908.

S. A. NEIDIGH. BRAIDING MACHINE.

APPLICATION FILED MAY 13. 1901 stares PIENT ()FFICE.

, sinner. A.NEID1GH,OF PHILADELPHIA, PENNSYLVANIA.

BRAIlTDINGr-MAQHINE.

No. seasic.

Specification ofLetters Eatent.

Patented July 21, 1908;

Application filed May 13 1901. Seria1 N0. 59,923.

To all whom it may concern:

Be 1t known that l, SAMUEL A. NEIDIoI-r,

' of Philadelphia, in the State of Pennsylvania,

with respect to the bobbins of the other se ries.

v in ordinary machines of'the class specified, the aforesaid. transposltion 0f the threads, which occurs a number of times 1n each cycle of relative progression of the two series of bobbins, occasions a slackening of the threads; and, in orderto preserve the proper tension upon the slackened threads, such machines necessarily comprise compensating devices auxiliruxy to the bobbin actuating mechanism, but operated in consonance there+ with, to alternately take up the threads w ien slaekencd and to relieve them. when tightened. x

it is the object of my present improvements to provide a machine of the class de scribed, which is so constructed and arranged. that the threads are not Sliifilifilld at any period of the operaticm of the machine, but are maintained at constant length by thread guides of novel construction; so. that the auxiliary take up devices aforesaid are dispensed with, and the operation of the machine correspondingly facilitated.

Although my improvements, hereinafter d e'scribed, are particularly adapted for a machine used in covering electrical ci'indutors, it is to be understood that I do not desire to limit my claims accordingly.

My invention consists in the novelfeatures of constrruztion and arrangementhereinafter more definitely specified and claimed.

In the accompanying drawings, Figure l,

is atop plan view of a machine conveniently embodying my invention. Fig. l. is a sectional view taken on the line ll-ll in'Fig. 1..

Fig. 111, is a fragmentary side elevation of'a portion of the rnacliune shown in Figs. 1 and H. Fig. 1V, is a top plan view of one of the upper series of bobbin. carriers. Fig. V, is a fragmentary sectional, view showing the arrangement of the upper bobbin carriers with respect to the frame which progresses them.

Fig. V1, is a detailed view of one of my im.- 1

proved oscillatory thread guides. Fig. VII, is a sectional view of one of the thread guide rock shafts.

In said figures, 1 is a statibnary frame uponwhich are fixed the overhanging brackets 2 and 3; the former being provided with the tube 4, through which the braid is discharged. The bobbin drum '5, is mounted for rotation in said bracket 3', and is provided with a series of resilient bobbin holders 6, arranged. to carrythe lower series of bobbins 7, whose spindles 8, are removably seated in said drum 5, and in said holders; as

shown in Fig. II. Said bobbins 7, are provided with threads 9, arranged to be with drawn .under tension due to pressure of the holders 6, on the spindles 8.

The upper series ofbobbins 10, provided with threads 11, are mounted upon the spindles 12, which are respectively fixed in the independent bobbin carriers 13. The threads 11, are arranged to be withdrawnunder ten-. sion due to pressure of the bifurcated upper extremities of said spindles 12, within the" bobbins 1.0. Said carriers 13, are mounted. to slide upon the track 14, upon whlch they are retained by screws whose lower ends are entered in an annular groove in said track as indicated in Fig. II. Said :track is fixed within the drum 5, and said carriers are regressed circumferentially upon said tree in equi-distant relation, by respective pairs of driving pins 15, which are mounted for independent reciprocation in *the carrier frame 1'6, and normally upheld in engagement with their respective carrlers'13, by the cams 17', fixed in the drum 5*; however, said pins are successively lowered, by the springs surrounding them, when intermediate of said cams 17, so as to permit the passagepf'the threads 9, between said carriers13, and the frame 16, over'the lowered pins at the proper intervals in the braiding operation, the arrangement being such however, that each of said carriers is at all times engaged with at least one of'its drivingpins 15. It 1s to be noted that the i dependerit arrangement made of minimum weight to perform the function specified. The tubular shaft 18, of

of said pins 15, is such that they may be.

saiddrum 5, is journaled in the bracket 3, and rovided at its lower extremity with the beve gear 19, in engagement with the bevel with a tight pulley 25, and loose pulley 26, it

is to be understood that the arrangement of the parts above described is such that when said shaft 21," is rotated, the drum 5, and frame 16, are rotated in relatively opposite directions, and, of course, oppositely progress the lower series of bobbins 7, and upper series of bobbins l0.

The drum 5, is provided with a peripheral flan e 24 u on which are mounted the rock shafts 28, which are tubular as shown in Fig. Vii, and provided with conically, threaded clamp nuts 29, arranged to removablyretain. the threadguides or needles 80. Each of said needles consists of a bar of U shaped cross-section, whose opposite ends are eccene tric, or oil-set, as shown. in detail in Fig. VI; and, each of said needles comprises a thread eye 3], in its shank adjoining its supporting shaft 28, and a thread eye 32, in its free extremity; both of said eyes being in communication with the thread channel 33, which exists from. end to end of the needle.

The threads 9, are withdrawn from the bobbins 7, through the respective uides 34, npd between the disks 35, which la ter are compressed by the springs 36 to secure the proper tension upon said threads. Said threads. 9, pass from the disks 35, through the 31, of ti e needles along the channels 33, and drawn from. the eyes 32, to the discharge tube 4. The threads 11, are with 3 drawn from the bobbins 10 between the o posed disks 37, to the discharge tube t, and, said are compressed by the springs 38, to seen the proper tension upon said threads.

Che bobbins 10, are caused to carry the tl --cmls El, alternately above and below the l, extending from the bobbins 7, as inch of said. needle shafts 28, is pro lded all a crank lever 39, connected by a link so, with an eccentric stud 4i, upona Wrisuplae 4E2. Said wrist-plates 42, ectivelyfiXe-d upon the outer extremithe radi lly disposed shafts 43, which ournalcd in the drum 5, and re- 1 h bevel gears 4 engaged with the stationary circular so, which is lilged upon the frame bracket 3.

arrangement above described is such, that during the rotation of the drum: 5,'each of the needles 30, is oscillated from the posi tien' shown in full lines in Fig. ill, to the posit/ion shown in dotted lines iivsaid figure, in such predetermined relation ti) the progression of the bobbins 10, that the threads "7 carried by the needles 38', are delivered alterframe 16.

through the tube 4, alone, or, as-the covering" for a central core 47, which is fed vertically' ly provided at their inner extremi bobbins in opposite directions, and, conse-' quently the threads 9, and 11, are braided in a tube 46, at the lower edge of the discharge tube, which is concentric with the common axis of rotation of the irum ,'and Said tube 46, maybe discharged upward through the hollow shait 22, of the frame ,lfi as shown in Fig. II.

The needle rock shafts 28,; being radially disposed with respect to the common axis of rotation of the drum 5, and carrier 16, the respective axes of oscillation of the needles 30, are, of course, radial with respect to said axis of rotation and the-coincident braiding point; so that, regardless of the position of oscillation of said needles 30, the length of the threads 9, extending from ,the needle eyes 31, to the braiding point, and, the tension. of said threads, is rendered invariable,

without the employment of any device to.

take up or let out the threads.

The speed of operation of machines of the prior art being materially limited by the necessary em loymentcf thread take u devices, mova le in consonance with eac trans osition of the threads; my improvements a ove described constitute an. important advance in, the art, in

that such take up devices are dispensed with, and a machine provided costing less to manufacture and capable of o eration at more than double the speed of t e ordinary machines employi such devices.

the braiding For simplicity of 1 lustration, I have shown a machine comprising'but four bobbins in each series; it is to be understood, however,

that my improvements ma be embodied in.

a machine comprising any esired'number of bobbins. Moreover, although I have shown the bobbins 10, of the upper series, of short length and lar e" diameter, disposed with their axes parallel with the common axis of rotationoi thedrum 5, and carrier frame 16.;

it is obvious thatsaid bobbins of the u per series may be made-of greater length an less diameter and mounted upon the carriers with their axes radially disposed with respect to the axis of rotation of the carrier frame, as is usual in. many in achines of the prior art.

4 I do not desire to limit myself to'the particular construction and arrangement-0f the machine which. I have shown, as it is obvious that various modifications may be made therein without departing from the essential features of my invention.

1 claim:

l. in a braidin machine, the combination with a bobbin rum; oi'a carrier frame; means to rotate sald drum and frame snnultaneously in opposite directions; a thread drum and carr ing said needles; and, means to oscillate sai hollow shaft as said drum rotates, substantially as set forth.

2. In a braidin machine, the combination I with a'rotatable rum carr ing a plurality of i bin drum and carrier naled in said drum; a

bobbins; of a series of in ependent carriers concentrically sup orted by said drum and each carrying a bo bin; means to rotate said drum in one direction and said carriers in the opposite direction means to guide the threads from the bobbins on the independent carriers', to the common axis of'rotation of-the drum and of, said carriers; and means to guide the threads from the bobbins on the drum to said axis, alternatel above and below the threads from the bobbins on the independent carriers, said means comprising a series of radially arranged hollow'shafts jourthread guide secured in each of said hollow shafts comprising a grooved needle; means to automatically oscillate said hollow shafts-as the drum rotates, said means comprising aseries of radial countershafts journaled in said drum; means to continuously rotate said countershafts while the. drum rotates; an eccentric on the outer end of each of said countershafts an arm secured on each of said hollow shafts; and, links connecting saidfeccentrics and arms, substantially as set forth.

3. In a braiding machine, with a stationary frame; of a tubularbearin upon said frame; a bobbin drum mounted forrotation in said bearing; a carrier frame mounted for rotation within said drum; bevel gears respectively fixed u on said bobframe; a riving shaft; a bevel gear upon said driving shaft engaged 'with the bevel gears upon said drum and frame; a stationary circular rack, in'concentric'relation with said drum and frame; a series of radial shafts mounted for rotation in said drum; respective bevel gears upon the inner extremities of said shafts, engaged with said stationary circular rack; eccentrics, respectively fixed upon the outer extremities of said radial shafts; needles, mounted to oscillate upon radial axes in said drum; means connecting said eccentrics with said needles,

. riers arranged tobe progressed .0

arranged to oscillate the latter; a series of bobbins on said drum; a series of bobbin carby said carrespectively of independrespectively rier frame; a series of bobbins, mounted on said carriers; pairs ently operative driving pins,

the combination.

with the rotatable annular body,

connecting each of said carriers with said frame; said pins being mounted for reciprocation iii a direction arallel with the axis of rotation. of the bob in carrier frame; and, means to alternately engage and disengage said pins with respect to said carriers, in predetermined sequence with respect to the relative progression of said drum and frame, substantially as set forth.

4. In a braidin machine, witlt a bobbin ti'ically in relatively op osite directions; a series of bobbins mounted upon said drum; 'a series of bobbin carriers arranged to be progressed by said frame; a series of bobbins respectively mounted on said carriers; means to guide the thread from the bobbins on the carriers to the braiding the thread from the be bins on the drum to the braiding point, alternately above and below the thread from the bobbins on the carriers, said means com rising a series of radially arran ed hollow safts journaled in said drum; a t read guide secured in each of said shafts and comprising a grooved needle having a portion offset from its shaft; means to automatically oscillate said hollow shafts as the drum rotates, said means comprising a series of radial countershafts journaled in said drum; means to continuously rotate said countershafts while the drum rotates; an eccentric on the outer end of each of said countershafts an arm secured to each of said hollow shafts; and, links connecting said eccentrics and arms, substantially as set forth.

5. In a braiding machine, with the rotatable annular body, sets of bobbins carried thereby and means for revolving said sets in. different directions, of thread carriers pivotally mounted on said'body, a continuously rotating cam for each thread carrier to actuate the latter and carried by said body, and means to rotate the cams, substan tially as set forth.

6. In a braiding machine,

sets of bobbins carried thereby, and means for revolving said sets; in different directions, of thread carriers pivotally mounted onsaid body, a continuously rotating cam for each thread carrier to actuate the latter and tating the cams, said means being driven by the means for revolving the bobbin sets, substantially as set forth. g

In testimony whereof, I have hereunto signed my name, at Philadelphia, Pennsyl- Vania, this tenth day of May, 1901.

I SAMUEL A. NEIDICH.

Witnesses:

ARTHUR E. PAIGE, E. LL FULLERTON.

the combination v rum; of a carrier frame means to rotate said drum and frame concenoint; means to guide.

the combination means for ro-- the combination 

